getpeername: Transport endpoint is not connected Post: 302731739

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Operating Systems Solaris getpeername: Transport endpoint is not connected Post 302731739 by DGPickett on Thursday 15th of November 2012 05:10:15 PM

11-15-2012

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Here is the packet by packet: A client sends a TCP syn bit packet from his socket to a listening socket on a server. The server sends a syn-ack packet back and sets up a connection filter to divert this clients packets to a child socket that is now considered possible 'connected' to the client, so the listener just gets new connection packets. Middle packets are just ack packets, as I recall. When idle, keep-alive packets are sent, to ensure timers do not expire saying there is a disconnect. Sometimes routers delete and fake these to reduce traffic! Either end could send a fin packet to close it, and expects a fin-ack packet back in response. If a code bit gets a stale socket, and asks for the peer name (remote ip and port), while the information is probably available, the fact that the connection is closed is deemed a more appropriate response -- no point beating a dead horse, as it were.

Last edited by DGPickett; 11-15-2012 at 06:47 PM..

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LEARN ABOUT SUNOS

strclean

strclean(1M)						  System Administration Commands					      strclean(1M)

NAME

       strclean - STREAMS error logger cleanup program

SYNOPSIS

       strclean [-a age] [-d logdir]

DESCRIPTION

       strclean  is used to clean up the STREAMS error logger directory on a regular basis (for example, by using cron. By default, all files with
       names matching error.* in  /var/adm/streams that have not been modified in the last three days are removed.

OPTIONS

       The following options are supported:

       -aage	       The maximum age in days for a log file can be changed using the -a option.

       -dlogdir        A directory other than /var/adm/streams can be specified using the -d option.

EXAMPLES

       Example 1: A sample of using the strclean command.

       This example has the same result as running  strclean with no arguments:

       example%  strclean -d /var/adm/streams -a 3

FILES

       /var/adm/streams/error.*

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcsu			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       cron(1M), strerr(1M), attributes(5)

       STREAMS Programming Guide

NOTES

       strclean is typically run from cron on a daily or weekly basis.

SunOS 5.10							    14 Sep 1992 						      strclean(1M)